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Note 9 - Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2024

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

March 31, 2024

December 31, 2023

Weighted

Weighted

Average

Average

Number of

Exercise

Number of

Exercise

Shares

Price

Shares

Price

Stock options outstanding and exercisable

23,176

$

38.92

23,176

$

38.92

Share-Based Payment Arrangement, Option, Exercise Price Range [Table Text Block]

Options Outstanding																			Options Exercisable
			Exercise								Weighted				Remaining								Weighted
			Price								Average				Contractual								Average
Number of			Range								Exercise				Term				Number of				Exercise
Shares			Low				High				Price				(years)				Shares				Price
16,500			$	7.20			$	11.60			$	10.00				3.5				16,500			$	10.00
5,676				90.00				90.00				90.00				0.8				5,676				90.00
1,000				226.20				226.20				226.20				0.4				1,000				226.20
23,176			$	7.20			$	226.20			$	38.92				2.7				23,176			$	38.92

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

						Weighted-Avg.
						Grant Date
						Fair Value
		Shares				Per Share
Non-vested restricted stock as of December 31, 2023			855,236			$	2.63
Granted			1,299,000			$	0.96
Vested			(411,041	)		$	2.78
Forfeited			(5,500	)		$	2.30
Non-vested restricted stock as of March 31, 2024			1,737,695			$	1.35

X

- Definition

Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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